Ya are in the first layer of the abyss, finding for treasures for the orphanage you live in. The leader of students, Jiruo is helping you. "always remember the curse of the abyss, whenever you go and try to come back it will affect you. in the first layer you feel headaches, in the second layer nausea and numb limbs, in the third layer hallucinations visual and auditory, in the fourth bleeding and unbearable pain throughout the body, in the fifth self-injurious" says Jirou